Cost to Build a Single Storey Extension in CM12

Build a single storey extension in CM12 from £39,000

Range from the cheapest single storey extension £39,000 (Capital Roofing Ltd based in SS13) to the dearest single storey extension £55,000 (Clive Williams based in CM13).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in CM12 by posting a job with HaMuch and we will send it to extension builders in CM12.

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Extension builder estimates (based on hourly rates) to build a single storey extension in CM12
Single storey extension cost in CM12
Estimates for common extension builder jobs in CM12;

Extension builder estimates (based on hourly rates) to build a single storey extension in CM12

Estimates for single storey extension near CM12

"Single storey rear extension" - BASILDON

Estimates for common extension builder jobs in CM12;

Rates for other CM12 trades

Single storey extension cost in CM12

Estimate Single storey extension cost in CM12 based on hourly/daily rate (excluding VAT or callout charges)
Business name	Single storey extension cost
ABS Building Specialists, Billericay, CM12	£49,880
Billericay Loft Conversions, Billericay, CM11	£51,800
Rimantas, Billericay, CM12	£47,000
D J J BRICKWORK LIMITED, Billericay, CM11	£47,000
PAUL BAILEY CONSTRUCTION, Billericay West, CM12	£50,840
RV BUILDING & MAINTENANCE, Billericay, CM11	£50,840
PRESTON BUILDERS LTD, Brentwood, CM13	£51,000
Clive Williams, Brentwood, CM13	£55,000
LDN Renovation LTD, Hutton, CM13	£52,600
PBS Homes Ltd, Essex, CM4	£51,960
JPC CONSTRUCTION LTD, Brentwood, CM13	£51,000
Essex Conservatories, The Old Tack Room, Summerhill Garden Cen, CM11	£49,720
Line Up Brickwork Ltd, Essex, CM13	£52,760
Property Maintenance, Laindon, SS15	£51,640
JCD Building Contractors, Essex, SS14	£52,280
Concept Interiors Management Ltd, Essex, SS14	£52,280
White & Sons Home Improvements, Langdon Hills, SS16	£51,800
Browns Contractors, Essex, SS16	£52,440
CLARK CONSTRUCTION, Langdon Hills, SS16	£50,840
Harris Murray Carpentry & Building Ltd, Essex, CM15	£53,240
Bush Builders, Essex, CM14	£53,080
Renov8 Create, Brentwood, Brentwood, Essex, CM14	£51,160
LG Construction (Essex) Ltd, Basildon, SS16	£47,000
Essex Elite Services, Brentwood, CM14	£50,680
Capital Roofing Ltd, Basildon, SS13	£39,000

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Location in UK	Hourly Rate	Daily Rate
Single Storey Extension near Billericay	£34	£219
Single Storey Extension near Brentwood	£34	£225
Single Storey Extension near Basildon	£34	£220
Single Storey Extension near Wickford	£34	£224
Single Storey Extension near Stanford-le-Hope	£35	£222
Single Storey Extension near Chelmsford	£33	£224
Single Storey Extension near Rayleigh	£34	£222
Single Storey Extension near Thundersley	£34	£221
Single Storey Extension near Thurrock	£36	£227
Single Storey Extension near Chafford Hundred	£36	£227

	Job	Estimate
	Cost to underpin a house	£17,284
	Build a two storey extension	£87,676
	Cost to build a timber frame extension	£25,784
	Cost to build a swimming pool	£80,784
	Cost to build a single storey extension	£50,674
	Cost to build a side return extension	£39,066
	Cost to Install an RSJ	£1,984
	Build an outbuilding	£9,784
	Cost to build a mansard loft conversion	£51,784
	Cost of a loft conversion	£31,722
	Cost to build a kitchen extension	£41,784
	Build a hip to gable loft conversion	£41,784
	Build a granny annexe	£86,784
	Build a garden office	£9,784
	Cost of a garage conversion	£15,784
	Build a new garage	£18,284
	Cost to build a flat roof extension	£21,784
	Cost to build a dormer loft conversion	£41,784
	Lay a concrete foundation	£6,034
	Cost of a bungalow loft conversion	£28,784
	Basement conversion cost	£35,066